3469324

Information

• Patent Grant
• 3469324

• References
• Source

• Patent Number

  3,469,324

• Date Filed

  Not available

• Date Issued

  Tuesday, September 30, 1969
  55 years ago

• CPC

  • F26B11/188 - the subdivisions consisting of concentric perforated walls, or spiral-shaped walls
  • B22C5/04 - by grinding, blending, mixing, kneading, or stirring
  • B22C5/085 - Cooling or drying the sand together with the castings
  • B22D31/007 - Tumbling mills

• US Classifications

  • 034 - Drying and gas or vapor contact with solids